chock vs top off

chock

verb
  • To insert a line in a chock. 

  • To make a dull sound. 

  • To stop or fasten, as with a wedge, or block; to scotch. 

adv
  • Entirely; quite. 

noun
  • Any fitting or fixture used to restrict movement, especially movement of a line; traditionally was a fixture near a bulwark with two horns pointing towards each other, with a gap between where the line can be inserted. 

  • Any object used as a wedge or filler, especially when placed behind a wheel to prevent it from rolling. 

top off

verb
  • To complete, to put the finishing touch to (something). 

  • To fill or refill the final portion of something that is not empty, until it is completely full. 

How often have the words chock and top off occurred in a corpus of books? (source: Google Ngram Viewer )